code: def schema(self) -> Schema:
      return _infer_schema(self._data_list)
  
file_path: mlflow/tests/resources/mlflow-test-plugin/mlflow_test_plugin/dummy_dataset.py
imports: import json
  from typing import Any, Dict, List, Optional
  import numpy
  import pandas
  from mlflow.data.dataset import Dataset
  from mlflow.types import Schema
  from mlflow.types.utils import _infer_schema
  from mlflow_test_plugin.dummy_dataset_source import DummyDatasetSource
label_desc: Use image node_id 7 for calling the DummyDataset obj's underlying member method code with example usage: obj.schema() and returns: _infer_schema